So what does this section explain?

Question

So what does this section explain?

Answer 1

Conservation is defined in two ways. Most people see it meaning as using only what you need to and trying to re-use or recycle what you have used.

Answer 2

this section aims to analyze and protect Earth's biological diversity

and each space devoted here is suppose to serve its purpose.

Conservation differs from environmentalism in that it aims to preserve natural resources expressly for their continued sustainable use by humans...

Answer 3

It explains what we can do to improve our environment.  Recycling for example; cleans up our streets; let trash for our county to pick up.  Makes money for other things.

Answer 4

Using more for less to some it up.

Answer 5

This section would explain that we must be  best friends of our environment.